Sunnyvale, Calif. OmniVision Technologies, Inc. has unveiled the latest addition to it automotive CameraChip family with the OV7949 CMOS image sensor. This single-chip sensor is said to offer significantly reduced blooming and smearing effects, which are important features in automotive applications when faced with bright headlights or brake lights.
The OV7949 CMOS image chip features a 1/3-in. lens format and a pixel size of 9.2 x 7.2 microns. This highly integrated analog CMOS image sensor, based on OmniVision's proprietary OmniPixel architecture, touts excellent low-light sensitivity (< 0.01 lux), a wide operating temperature range of -40°C to 105°C, and low-power consumption of 200 mW. It supports NTSC/PAL composite video output and can directly interface with an in-car LCD screen or other 75-ohm loading device.
Other key specifications include a dynamic range of 50 dB, sensitivity of 2.26 V/Lux-sec at 5600K, and sensitivity boost of +42 dB. Dark current is rated at 10 mW/s at 60°C. Other features include automatic exposure/gain with 16-zone control, auto white balance control and defective pixel correction.
The OV7949 is an enhanced, pin-compatible PQFP packaged upgrade to its predecessor, the OV7940, which was launched last year. The automotive CameraChip is built to the specifications of the Automobile Electronics Council AEC-Q100 criteria for preconditioning, humidity, high temperature cycle, mechanical, optical and electrical test parameters. Applications include occupant sensor, adaptive cruise control, rear view/backup camera, lane departure warning, blind spot detection and night vision.
Available in sample quantities, the OV7949 is priced at approximately $14 to $16.
OmniVision Technologies, 1-408-542-3000, www.ovt.com